Overview

overview

10

Static

static

10

90c5baa103...ba.exe

windows7-x64

10

90c5baa103...ba.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    146s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-05-2023 01:45

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General

  • Target

    90c5baa1030eb91bb5f870eb75e48fe3187d41c938527695ae59bdc6fb6bd3ba.exe

  • Size

    348KB

  • MD5

    a84e026ecca48ed97df640bb5b68e980

  • SHA1

    c7a8291fa7b7fd6ed7c633e95b6c48d646acfc6d

  • SHA256

    90c5baa1030eb91bb5f870eb75e48fe3187d41c938527695ae59bdc6fb6bd3ba

  • SHA512

    57c92c32df21dfc9346446ee4146da01e2fd52101f5fab1f24364addbc8bb3846b9f2fecc7b5f2c8fee5301be8b0af833a9d6b43f5ae73d55201167be4ef61c0

  • SSDEEP

    6144:P7qQ4i1FFiEKrmVxmg1TnE0DaGbdRly/9LxcGBFGbVzS:jpli8xx1Q9tLxdBERzS

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

Office04

C2

cryptersandtools.ddns.com.br:5552

Mutex

QSR_MUTEX_PV7LCoiUmiwD1RBPCq

Attributes
  • encryption_key

    Vw2ej5yeMh01Kv7liiDf

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Signatures

  • Quasar RAT 2 IoCs

    Quasar is an open source Remote Access Tool.

    trojanspywarequasar
  • Quasar payload 1 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\90c5baa1030eb91bb5f870eb75e48fe3187d41c938527695ae59bdc6fb6bd3ba.exe
    "C:\Users\Admin\AppData\Local\Temp\90c5baa1030eb91bb5f870eb75e48fe3187d41c938527695ae59bdc6fb6bd3ba.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:696

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/696-133-0x0000000000950000-0x00000000009AE000-memory.dmp
    Filesize

    376KB

    Download
  • memory/696-134-0x00000000059D0000-0x0000000005F74000-memory.dmp
    Filesize

    5.6MB

    Download
  • memory/696-135-0x0000000005420000-0x00000000054B2000-memory.dmp
    Filesize

    584KB

    Download
  • memory/696-136-0x00000000053D0000-0x00000000053E0000-memory.dmp
    Filesize

    64KB

    Download
  • memory/696-137-0x00000000057C0000-0x0000000005826000-memory.dmp
    Filesize

    408KB

    Download
  • memory/696-138-0x00000000059B0000-0x00000000059C2000-memory.dmp
    Filesize

    72KB

    Download
  • memory/696-139-0x00000000053D0000-0x00000000053E0000-memory.dmp
    Filesize

    64KB

    Download
  • memory/696-140-0x00000000067B0000-0x00000000067BA000-memory.dmp
    Filesize

    40KB

    Download